Crash with recent kernel on wireless

[Vladimir Grebenschikov]

Hi

Recently I've upgraded 7-STABLE: Mar 11 -> Apr 24

Everything was fine until I've tried to configure wireless (ath driver,
WPA)
It crashes every time after interface becomes UP, 
(I've seen associated in ifconfig output before crash), but before dhcp
finished to get IP.

% cat /var/crash/info.43 
Dump header from device /dev/ad0s2b
  Architecture: i386
  Architecture Version: 2
  Dump Length: 162320384B (154 MB)
  Blocksize: 512
  Dumptime: Fri Mar 28 17:24:32 2008
  Hostname: vbook.fbsd.ru
  Magic: FreeBSD Kernel Dump
  Version String: FreeBSD 7.0-STABLE #3: Tue Mar 11 19:35:53 MSK 2008
    root at vbook:/usr/obj/usr/src/sys/VBOOK
  Panic String: non-maskable interrupt trap
  Dump Parity: 3087556879
  Bounds: 43
  Dump Status: good

kgdb does not shows match (why ?):

% kgdb  /boot/kernel.bad/kernel /var/crash/vmcore.43
[GDB will not be able to debug user-mode
threads: /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you
are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as "i386-marcel-freebsd".
(no debugging symbols found)...No struct type named linker_file.
No struct type named linker_file.
No struct type named linker_file.
No struct type named linker_file.
Attempt to extract a component of a value that is not a structure
pointer.
Attempt to extract a component of a value that is not a structure
pointer.
Attempt to extract a component of a value that is not a structure
pointer.
Attempt to extract a component of a value that is not a structure
pointer.
#0  0x00000000 in ?? ()
(kgdb) 

Any ideas what to do ? Or probably some hints.

-- 
Vladimir B. Grebenschikov
Parallels Inc. vova at parallels.com